what does "KW" stand for?
I think that was a typo...I took it to mean Kingdom Hall...but I could be wrong.
If this announcement is true, I think it's probably designed to help alleviate some of the work for elders. If everyone meets at the hall then either they will have 1 book study conductor and rotate the readers like they do the WT study, or they will rotate the book study conductor to give elders/ministerial servants a break or assign a MS to do the book study.
I also think that if true, it will alleviate stress for people that currently have book study in their home. I use to have it in mine and always dreaded Tuesday's and Saturday's. It's a lot of work especially if you have small children, and that always seemed to be the ones that offered their homes when I was in.